About shamg1974

shamg1974 · 11-04-2021

Hello, In preparation for a Nexus upgrade, just thinking through, as the upgrade process occurs on both the primary and secondary switches, what scenario could cause the Top of Rack switches to lose connectivity. Assume that all ToR switches are dual...

shamg1974 · 09-10-2019

Hello all, Does anyone know what the average failover time is for hosts dual-connected to a pair of Nexus 9k's (vPC configuration)? I recently upgraded four Nexus 9k's, one at a time, and found some hosts had lost connectivity for about 6 seconds dur...

shamg1974 · 07-24-2019

Hello, I'm going to be upgrading some Cisco N9K's to current gold-star code. They're currently setup in VPC configuration. I've upgraded Nexus switches before, but i'm just wondering if the switches being in VPC configuration would have any impact. C...

shamg1974 · 06-19-2019

I'm attempting to configure fast hello on two copper interfaces on my 9407 chassis' running SVL. It won't give me the option to do so under config mode: Switch#conf tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#int g1/1/...

shamg1974 · 11-05-2018

We currently run DHCP on each of our site cores for our site vlans. In particular, we have our access point management subnet setup with a lease time of 12 hours. I'm wondering if there is a best practice for this? Seems to me that the AP's would wan...

shamg1974 · 05-21-2021

Thanks Perkin. I have a scheduled maintenance window, so downtime is allowed. So you recommend just reloading both chassis at once via "redundancy reload shelf", correct?

shamg1974 · 05-21-2021

Asking the group...Once boot variable is changed, config-register is changed, config is saved and it is time to reboot --> should I just reboot the entire VSS (both chassis') with redundancy reload shelf, or one at a time? Thanks,Shameer

shamg1974 · 05-21-2021

Hello Reza, Thanks for your help in the past. I had a question regarding this post. I will be going through the process of upgrading the IOS on the Cisco 6840-X VSS. Specifically Step #8. After steps 1-7 (listed by Leo above) are completed, what do y...

shamg1974 · 05-21-2021

Hello Leo, I had a question regarding your process for upgrading the IOS on the Cisco 6840-X VSS. Specifically Step #8. After steps 1-7 are completed, what do you recommend for reboot? I'm reading several different commands, some of which reboot one ...

shamg1974 · 09-10-2019

Hey Reza, I had a quick question regarding this upgrade. As you'll recall, I planned to upgrade the 4 nexus 9k's, one at a time. Everything is dual-homed (servers, etc.). I didn't shut down any interfaces prior to upgrading since it was a maintenance...

Member Since	‎01-30-2007 01:56 PM
Date Last Visited	‎11-05-2021 12:18 AM
Posts	109
Total Helpful Votes Received	10

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Nexus VPC Upgrade - ToR Redundancy

Nexus failover time - host connectivity

Nexus 9k Software Upgrade - VPC and NX-OS compatibility

Cisco 9407 Stackwise Virtual - Fast Hello on Copper interface?

Access Point DHCP lease time - best practice?

Re: Cisco 6880-X VSS Upgrade procedure

Re: Cisco 6880-X VSS Upgrade procedure

Re: Cisco 6880-X VSS Upgrade procedure

Re: Cisco 6880-X VSS Upgrade procedure

Re: Nexus 9k Software Upgrade - VPC and NX-OS compatibility